/V2.2/trunk/RI/Desktop/StockTraderRI.Modules.WatchList/Controllers/WatchListController.cs

//===================================================================================

// Microsoft patterns & practices

// Composite Application Guidance for Windows Presentation Foundation and Silverlight

//===================================================================================

// Copyright (c) Microsoft Corporation.  All rights reserved.

// THIS CODE AND INFORMATION IS PROVIDED "AS IS" WITHOUT WARRANTY

// OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING BUT NOT

// LIMITED TO THE IMPLIED WARRANTIES OF MERCHANTABILITY AND

// FITNESS FOR A PARTICULAR PURPOSE.

//===================================================================================

// The example companies, organizations, products, domain names,

// e-mail addresses, logos, people, places, and events depicted

// herein are fictitious.  No association with any real company,

// organization, product, domain name, email address, logo, person,

// places, or events is intended or should be inferred.

//===================================================================================

using System.Collections.Specialized;

using Microsoft.Practices.Composite.Regions;

using StockTraderRI.Infrastructure;

using StockTraderRI.Modules.Watch.WatchList;



namespace StockTraderRI.Modules.Watch.Controllers

{

    public class WatchListController : IWatchListController

    {

        private readonly IRegionManager regionManager;

        private readonly IWatchListPresentationModel watchListPresentationModel;



        public WatchListController(IRegionManager regionManager, IWatchListPresentationModel watchListPresentationModel)

        {

            this.regionManager = regionManager;

            this.watchListPresentationModel = watchListPresentationModel;

        }



        public void Run()

        {

            this.regionManager.RegisterViewWithRegion(

                                                    RegionNames.MainRegion,

                                                    () => this.watchListPresentationModel.View);

            this.watchListPresentationModel.WatchListItems.CollectionChanged += this.WatchController_CollectionChanged;

        }



        private void WatchController_CollectionChanged(object sender, NotifyCollectionChangedEventArgs e)

        {

            if (e.Action == NotifyCollectionChangedAction.Add)

            {

                var mainRegion = this.regionManager.Regions[RegionNames.MainRegion];

                if (mainRegion != null)

                {

                    mainRegion.Activate(this.watchListPresentationModel.View);

                }

            }

        }

    }

}